How to run

Install Hammerspoon
Copy init.lua and all .applescript files to ~.hammerspoon/
Start Hammerspoon and Hit Reload Config from the Hammerspoon menu accessible from the toolbar on top

A bit about the code

The first part in init.lua allows you to never have to Reload Config (which is basically means loading init.lua file in Hammerspoon). It automatically reloads when you make any changes to the file and save.
When changes are made to the files in ~.hammerspoon/, copy these files back into your repo directory to commit to the remote repo
When saving any Applescript files, you will need to use the export to text option for it to work with Hammerspoon. This saves the file with the extension .applescript. The defualt extension, .scpt does not work with Hammerspoon.